Finding the Fourth Proportional to 2,551.52, 3,520.71 and 1,557.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.52 : 3,520.71 = 1,557.14 : x
2. Step 2: Convert to fraction form
   2,551.52/3,520.71 = 1,557.14/x
3. Step 3: Cross multiply
   2,551.52x = 3,520.71 × 1,557.14
4. Step 4: Simplify right side
   2,551.52x = 5,482,220.77
5. Step 5: Solve for x
   x = 5,482,220.77/2,551.52
6. Step 6: Final answer
   x = 2,148.61